| article html file updated | 5 February 2020 10:44 CET | Update | https://www.mdpi.com/1424-8220/2/8/314 |
| article html file updated | 18 September 2019 15:36 CEST | Update | - |
| article html file updated | 9 May 2019 14:33 CEST | Update | - |
| article html file updated | 19 March 2019 15:22 CET | Update | - |
| article html file updated | 18 July 2017 09:23 CEST | Update | - |
| article html file updated | 18 July 2017 09:22 CEST | Update | - |
| article html file updated | 18 July 2017 09:21 CEST | Original file | - |
| article xml uploaded. | 18 July 2017 09:20 CEST | Update | https://www.mdpi.com/1424-8220/2/8/314/xml |
